Lock



June 17,- 1930. A. vAlcEKAUcKAs LOCK Filed Dec. 14, 1928 3 Sheets-Sheetl lll-....2

ATTORNEY June 17, 1930. A. vAlcEKAucKAs LOCK Filed nec'. 14, 1928 3Sheets-Sheet 2 V y lll.

ATTORNEY June 17, 1930." A. vAlcr-:KAUCKAS LOCK SSheets-Sheet 3 Fi'ledDec. 14 41928 #Ik/'Z Vezrazzciraa,

INVENTOR ATTORNEY Patented June 17, 1930 ALBERT VAIGEKAUCKAVS, oFRooxronn, ILLINOIS LOCK application mea 'December 14, 192s. serial, No.325,963.

This invention relates to a keyless lock of the mortice type, thegeneral object ofthe invention being to provide means vwhereby the deadbolt can only be manipulated from one side of the door or barrier7 thusmaking .it impossible to manipulate said bolt-from the other side of thedoor,thereby providing a burglar-proof lock. Y

A further object ofthe inventiony is 'to make the parts adjustable sothat the lock manipulating means can be placed on either side of thedoor andalso to make the latch bolt slidable on the deadr bolt sothatboth bolts work .in one hole 'formed in' the lock casing and thestrikerI plate.

A still further object of the invention is to provide a rotatable memberhaving a handle'thereon, mounted on a part of the knob stem, formanipulating the dead bolt, and to gg provide a dog for locking the deadbolt in either retracted or projected position.

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to' behereinafter fully described,y illustrated in the accompanying drawingsand specifically pointed out in the appended claims. y

In vdescribing the invention in detail, refer- '30 ence will be had :tothe accompanying 'drawings wherein like characters denote like orcorresponding parts throughout theseveral views, and in whichyt Figure 1is an edge view of portion of a door, showing the improved lock' appliedthereto.

Figure 2' isa faceview of a portion of the door, showing the lockingplate.

Figure 3 is a sectionon line S-Bof Figurel. f f

Figure'll is a ysection on line of FigureS.' Figure 5 is a section online 5-5 Vof Figure. i

Figure 6 is Figure 7 is a view similar to Figure 3,'but t Figure 9 is aview of thel sectional member for operating both bolts from the knobstem and the sleeve. Y y

Figure 10 isa perspective view of the dead bolt. 55A

Figure 11 is a perspective view of the latch bolt, showing the partsthereof separated.

Figure 12 is a view of the striker plate.

In these drawings, the numeral 1- indicates the casing of the lock whichis morticed in ou the door A in the usual manner, said casing includinga covery plate 2 and the front plate' 3 which is countersunk in the edgeof the door and which is formed with a single opening' 4 for the latchbolt 5 and the dead bolt 6. 65 The latch bolt is formed with the grooves7 in its outer part, oneof which receives the guiding rib 8 onY theouter part of the dead bolt and the other receives a projection 9 formedon the top wall of the opening 4. The 79 latch bolt is formed with acentral opening 10 into which extends a projection 11 formed on thecasing and a spring 12 is arranged in said opening and bearsv againstthe projection and the Afront wall of said opening and acts t0 hold thelatch bolt projected.v The forkednpart 5 of the latch bolt is fastenedtothe front part thereof by the screw 5 so that this-forkedpart can bereversed, whereby the llockcan be used either as a left hand lock .imkora right hand lock, thus enabling the dead bolt manipulating means tobe placed on' either side 'of the door. v' f Y Thel lugs on the ends ofthe prongs of the forked' part areV engaged bythe projections 85 13 onthe member 14 throughwhich the Vstem '150i the knobs or handles l'passso that by partly rotating the knobs orv handles,y this member 14 willberocked to retract the latch bolt in the usual'manner. This member 1490 has a reduced part iitting in a circular hole inthe cover-plate ofthe casing and the reduced part on the otherfpface of said member 14lits iiiy a' rounued recess in a ring kmember 17 whichhas a reduced parttit-ting yin a cir- 95 cular hole inthe casing`r the opening in the ringpart being made of larger diameter than the knob stern so that the stemcan pass there- `through and be rocked without moving said memberl'?.The reduced part `of this meni- '100 ber 17 is formed with theoppositely arranged openings 18 and a sleeve 19 is rotatably lmounted onapart of the stem and eX- tends through the escutcheon plate 2O on oneface of the door and through a part ot the doer and has oppositelyarranged ears 21 on Y its inner end which enter the notches 18 so thatwhen this sleeve-is turned, the member 17 will also be turned.y

A handle 22 has a ring shaped part 23 encircling the outer end ofkthe'sleeve and a set screw 211 passes through the part 28 into any oneof a number of notches 25 formed in the sleeve whereby the handle can beadjusted on the sleeve to permit the lock to be` placed on doors ofdifferent thicknesses. v

As will be seen, by applying pressure to the handle 22, the sleeve willbe turned to move the member 17 and this sleeve is `turned independentlyof the knoby stem 15 and the knob. stem can be turned withoutY .moving"the sleeve. An arm 26 is connected with the member 17 and carries a pin27 which passes through a slot 28 formed in the rear part of the deadbolt so that the'rocking inovementct the member 17 Will'retract andproject the dead bolt. This dead bolt is guided in its movement by meansof a projection 29 formed on the 'casing engaging a slot 30 in the deadbolt. A dog 31 is pivotally arranged in the casing and has a projection32 thereon for engaging either one of a pair ot notches 34 formed in therear part of the dead bolt sothat the dog will lock the dead bolt ineither its prof jected Vor retracted positions. Y

. `A spring 35 presses theV dog toward the deadbolt and the'tree end of`the dog is 1formed with a 'rounded enlargement 31 which engages the pin27 on the arm ot'- the member 17 in such a manner that when the member17 isY turned, the pressure of the pin Y the movement of the bolt;

:gages Y Vcertain extent by teV turningl of the member against'therounded enlargementl will cause y'the dog to move outwardly againsttheaction ot its spring and thus, move the projection on the dog out ofthe .notch whichit en- After the bolt has been-.moved to -a 17 ,thepressure oit ythe spring on the dog will cause the rounded partof thedog to complete VThe detachable knob 16 is threaded to the stem 15 andthe parts are locked together b-y `the set screw 16( and the strikerplate 36 has a single. opening'37 therein to'receivejboth bolts, theupper wall oi the opening having i a projection 38 thereon for-enteringthe-top Vgroove 7 of the latch bolt. 7

Y -f VFrom the foregoingit will be Vseen that Teo the latchbolt canbemanipulated inthelordinary-manner from .either side lof the door throughmeans or" the handles-'orf knobs 16,

but the dead boltlcan only beimanipulated` from one side otfthe door byturning theV from that side oi' the door which is loppositeV the side onwhich the dead bolt manipulating means are placed.-

As before stated, by making the latch bolt in two portions which aredetachably connected together, the forked part can be reversed so thatthe dead bolt manipulating means may be placed on either side or"v th vdoor. i l

v It is thoughtl trom the foregoing description that the advantages andnovel features of the invention will be readily apparent.

It is to be understood that changes may be tion and arrangement oitl theseveralparts,

provided that such changes :tall within the scope of theappendedclaims.r

, Vi/vhat-I claim is :V-V f l 1 1. A lock ,of the class describedcomprising a casing, a spring actuated latch bolt slid-- ably arrangedinthe casing, a dead bolt slidably arranged in the casing, a lspringactuated locking dog in the casing for positively flocking the dead boltin either projected or retracted position, a stem" passing throughmember movable with the stem foi-contracting thelatch bolt, a manuallyoperated mem-V made in the construction and in the combina- Ythe casing,handles on the ends of the stem, a K

locking dog in the casing for lockingv the dead bolt in eitherprojectedor retracted position,

ia' stem passing-through thev casing,-handlesy on the ends of the stem,a member movable with thestem for co-ntracting the latch bolt, amanually operated member'rotatablymounted onpthe stem, gan arm carryingmember rotatably arranged in the casing and actuated by l said vmanuallyoperated meniben a pin on the-arm engaging a part of the dead said pinalso moving the locking dog to releasing position,.said latch .holtbeing formed 4bolt Vfor projecting andretracting the same, Y

togetherfwhereby the rparts can be reversed i so that the deadboltinanipulating means can f .be placed on either side ot a door.'handle 22 to cause thesleeve `19 to rockfthe Y ing a casing, a latchbolt and dead bolt slidably arranged in the casing, a stem passingthrough the casing, handles connected With the ends of the stem, springmeans for normally holding the latch bolt projected, means associatedwith the stem forretractingthe latch bolt, said dead bolt having a slottherein and a pair of notches therein, an arm carrying member rotatablyarranged on the stem,

a pin on the arm extending through the slot in the dead bolt, a sleeverotatably arranged on a part of the stem and engaging the arm carryingmember whereby said member will be turned when the sleeve is turned, ahandle member adjustable longitudinally on the sleeve, a spring actuatedlocking dog having a projection thereon for engaging either one of thenotches in the dead bolt, said dog having a rounded part engaging thepin whereby the dog Will be moved toreleasing position When the membercarrying the pin is moved.

4. A lock of the class described comprising a casing having an openingtherein, a projection on one Wall thereof, a latch bolt and dead boltslidably arranged in the casing and having their outer ends arranged inthe opening, one of the bolts having grooves therein and the otherhaving a rib thereon engaging one of the grooves, the other groove beingengaged by the projection, a stem' passing through the casing, handleson theends of the stem, means associated With the stemv for manipulatingthe latch bolt, a member rotatably mounted on one part of the stem, ahandle connected with said member and means operated by said member yformanipulating the dead bolt. v

In testimony whereof I afiX my signature.

ALBERT VAICEKAUCKAS. j

